Iowans should soon know more about what they can expect to find on the new health exchange, though whether the state's two largest carriers will participate remains unclear.

Sunday is the deadline for insurance carriers to file to be included in the online marketplace for Iowa. Iowa Insurance Commissioner Nick Gerhart says he expects to release the insurance providers' names on Monday, though the details on the specific plan proposals will come later.

Representatives for Wellmark Blue Cross and Blue Shield and UnitedHealthcare - which combined hold roughly 90 percent of the Iowa insurance market - declined to comment on their intentions.

Gerhart says he expect a few statewide providers to be available, but doesn't know if the big two will opt in.